What it's for... The VZ-FC-F Series provides studio style focus control from tripod handle for most Fujinon professional broadcast video lenses.
How it works... VZ-FC-F controller features a custom built cable for precise and accurate focus. Rotate the handle to smoothly focus the subject.
Where it connects... Just connect the gear box to the standard tapped hole on your lens. Clamp the controller to your tripod pan handle.